Description
Product Overview
The TCI Powerglide Transmissions 73254431 is a race-focused Powerglide automatic transmission designed for compatible Chevy applications that require strength, consistency, safety certification, and full manual control. Built for drag-racing use, this unit is a strong choice for performance builders who need a proven 2-speed automatic transmission platform with serious supporting hardware.
This transmission is identified by Manufacturer’s Part Number 73254431, Summit Racing Part Number TCI-73254431, and UPC 788120038072. These identifiers help drag racers, race teams, performance shops, chassis builders, mechanics, service departments, and drivetrain specialists confirm the correct TCI transmission before ordering.
The transmission features 2 gears, a Chevy bellhousing bolt pattern, forward shift pattern, and full manual valve body. It is listed with a 700 advertised horsepower rating, making it suitable for compatible race and performance applications where a properly matched Powerglide transmission is required.
This unit includes a trans-brake, specifically listed with a Pro Tree trans brake and standard-length tailshaft. It also includes a 10-clutch hi-drum and hi-static reverse clutches, important details for buyers building a serious drag-racing transmission setup.
The Dedenbear case with safety liner is listed with SFI 30.1 and SFI 4.1 certification, while the product specifications also confirm built-in transmission shield and built-in flexplate shield. These safety-related specifications are especially important for race vehicles that must meet track or class requirements.
This transmission does not include the torque converter, does not include the flexplate, does not include the controller, does not include the wiring harness, does not include the cooler, does not include transmission fluid, and does not include a dipstick. Buyers should confirm all supporting components before installation.
Fitment and Application Details
The TCI 73254431 Powerglide transmission should be matched carefully to the intended vehicle, engine, converter, chassis, and racing application before ordering. Drag-racing automatic transmission fitment can vary by engine platform, bellhousing pattern, converter setup, flexplate, transmission mount, crossmember location, tailshaft length, driveshaft length, yoke style, shifter type, cooler routing, fluid requirements, and race safety rules.
This unit uses a Chevy bellhousing bolt pattern, making it relevant for compatible Chevy-based performance applications. Buyers should confirm engine compatibility, converter spacing, flexplate fitment, crankshaft pilot fitment, converter bolt pattern, and transmission mount location before purchase.
Important fitment details to verify include vehicle make, engine platform, Chevy bellhousing compatibility, torque converter requirements, flexplate compatibility, converter bolt pattern, crankshaft pilot fitment, 1.80 first gear ratio suitability, 30-spline input compatibility, Vasco input shaft setup, 11.250-inch tailshaft length, slip-on yoke requirement, crossmember location, driveshaft length, shifter compatibility, full manual valve body operation, trans-brake wiring, cooler system, fluid specification, dipstick setup, SFI safety requirements, and installation hardware.
Because this transmission includes a Pro Tree trans-brake, buyers should confirm shifter compatibility, wiring setup, trans-brake activation method, and race class requirements before installation.
The 1.80 first gear ratio should be matched to the engine output, converter selection, rear axle ratio, tire size, vehicle weight, and intended racing use.
For a complete installation, additional components may be required, including a torque converter, flexplate, transmission cooler, cooler lines, shifter, shifter cable, transmission fluid, dipstick, transmission mount, crossmember hardware, driveshaft/yoke components, trans-brake wiring, electrical switch hardware, safety equipment, and vehicle-specific installation hardware.
Build Quality and Reliability
The TCI Powerglide Transmissions 73254431 is built for drag-racing applications where consistent operation, strong internal parts, and safety certification matter. GM’s Powerglide platform is one of the most common automatic transmission choices in drag racing, valued for its simple 2-speed layout and strong performance potential when built correctly.
This model is rated for 700 advertised horsepower, giving it strong buyer appeal for race cars and high-performance Chevy applications.
The full manual valve body gives the driver direct shift control, which is important in racing applications where consistency and predictable gear changes are essential.
The included trans-brake supports race launch control in compatible drag-racing setups. The Pro Tree trans brake detail makes this unit especially relevant for racers who need quick and consistent launch response.
The 30-spline Vasco input shaft is a key strength-related specification for buyers planning a serious Powerglide build.
The 10-clutch hi-drum and hi-static reverse clutches further support the race-focused design of this transmission.
The Dedenbear case with safety liner, built-in transmission shield, built-in flexplate shield, and SFI 4.1 / 30.1 rating make this unit highly relevant for track-focused builds where safety certification is a priority.
What Makes This Transmission a Strong Choice
The TCI Powerglide Transmissions 73254431 is a strong choice for buyers who need a 700HP-rated Powerglide transmission for compatible Chevy racing applications.
The Powerglide platform is widely used in drag racing because of its simplicity, consistency, and strong performance potential.
The full manual valve body gives racers direct shift control.
The included Pro Tree trans-brake supports race launch control in compatible applications.
The 1.80 first gear ratio gives builders an important gear selection for matching engine output, converter, rear gear, tire size, and vehicle weight.
The 30-spline Vasco input shaft adds a serious strength-focused specification.
The Dedenbear case with safety liner and SFI 4.1 / 30.1 certification provide important race-safety value.
The built-in transmission shield and built-in flexplate shield make this transmission especially appealing for drag-racing builds where safety equipment and rules matter.
Ideal Buyers and Use Cases
The TCI Powerglide Transmissions 73254431 is ideal for drag racers, race teams, bracket racers, heads-up racers, chassis builders, performance shops, engine builders, race-prep garages, transmission specialists, and competition vehicle owners who need a serious Powerglide automatic racing transmission.
It is suitable for compatible Chevy applications requiring a 2-speed automatic transmission, 700 horsepower rating, full manual valve body, trans-brake, 1.80 first gear ratio, SFI-certified Dedenbear case, and built-in safety shields.
This product is useful for drag cars, bracket cars, heads-up race cars, purpose-built competition vehicles, high-performance Chevy builds, and race vehicles that need a properly matched Powerglide transmission with safety-focused construction.
It is also a practical choice for professional builders confirming required supporting components such as the torque converter, flexplate, shifter, cooler, cooler lines, transmission fluid, dipstick, transmission mount, driveshaft/yoke setup, trans-brake wiring, and SFI/race-safety requirements.
The best buyer for this transmission is someone who can confirm the Chevy engine platform, converter setup, 1.80 gear ratio requirement, 11.250-inch tailshaft length, yoke setup, shifter compatibility, chassis layout, and required race components before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | TCI Powerglide Transmissions 73254431 |
| Brand | TCI Auto |
| Manufacturer’s Part Number | 73254431 |
| Part Type | Automatic Transmissions |
| Product Line | TCI Powerglide Transmissions |
| Summit Racing Part Number | TCI-73254431 |
| UPC | 788120038072 |
| Transmission Platform | Powerglide |
| Number of Gears | 2 |
| Bellhousing Bolt Pattern Manufacturer | Chevy |
| Transmission Shift Pattern | Forward |
| Valve Body Style | Full manual |
| Transmission Advertised Horsepower Rating | 700 |
| Torque Converter Included | No |
| Flexplate Included | No |
| Transmission Controller Included | No |
| Wiring Harness Included | No |
| Transmission Cooler Included | No |
| Trans-Brake Included | Yes |
| Trans-Brake Type/Note | Pro Tree trans brake |
| Lockup Compatible | No |
| Transmission Pan Style | Deep |
| Transmission Pan Material | Aluminum |
| Tailshaft Length | 11.250 in. |
| Yoke Style | Slip-on |
| Input Spline Quantity | 30 |
| Input Shaft Material | Vasco |
| First Gear Ratio | 1.80 |
| Clutch Hub | Steel |
| Transmission Case Material | Aluminum |
| Transmission Case Finish | Natural |
| Case Note | Dedenbear case with safety liner |
| Transmission Shield Built In | Yes |
| Flexplate Shield Built In | Yes |
| Fluid Fill Location | Case |
| Transmission Fluid Included | No |
| Dipstick Included | No |
| SFI Rating | SFI 4.1 / 30.1 |
| Internal Notes | 10 clutch hi-drum, hi-static reverse clutches |
| Remanufactured | Yes |
| Quantity | Sold individually |
| Fitment Support | Confirm compatibility before ordering |
Ordering Support and Fitment Guidance
Before ordering the TCI Powerglide Transmissions 73254431, confirm that the transmission matches your vehicle, engine platform, converter setup, chassis layout, and race application.
Important details to verify include vehicle make, engine platform, Chevy bellhousing compatibility, torque converter requirements, flexplate compatibility, converter bolt pattern, crankshaft pilot fitment, 1.80 first gear ratio suitability, 30-spline input compatibility, 11.250-inch tailshaft length, slip-on yoke requirements, transmission mount location, crossmember position, driveshaft length, shifter compatibility, full manual valve body operation, trans-brake wiring, cooler system, transmission fluid requirements, dipstick setup, and SFI/race safety requirements.
This transmission includes the trans-brake, Dedenbear case with safety liner, built-in transmission shield, and built-in flexplate shield. It does not include the torque converter, does not include the flexplate, does not include the transmission controller, does not include the wiring harness, does not include the transmission cooler, does not include transmission fluid, and does not include a dipstick.
Our team can help confirm compatibility using the 73254431 part number, engine details, vehicle setup, converter information, chassis requirements, and racing application before purchase.
Frequently Asked Questions
What is the TCI Powerglide 73254431 transmission?
The TCI Powerglide 73254431 is a 2-speed remanufactured Powerglide automatic transmission rated for 700 advertised horsepower. It is designed for compatible Chevy drag-racing and performance applications.
Is this transmission for Chevy applications?
Yes. This transmission is listed with a Chevy bellhousing bolt pattern. Buyers should still confirm engine, converter, flexplate, mount, and driveline compatibility before ordering.
Does this transmission include a trans-brake?
Yes. This transmission includes a trans-brake and is listed with a Pro Tree trans brake.
What valve body does this transmission use?
This transmission uses a full manual valve body, giving the driver direct shift control in compatible racing applications.
What is the horsepower rating?
The TCI 73254431 Powerglide transmission is listed with a 700 advertised horsepower rating.
What is the first gear ratio?
The first gear ratio is 1.80. Buyers should confirm that this ratio matches the engine output, converter, rear gear, tire size, vehicle weight, and race application.
Does this transmission include a torque converter?
No. The torque converter is not included. Buyers should select the correct converter for the engine, vehicle weight, rear gear, tire size, and intended racing use.
Does this transmission include a flexplate?
No. The flexplate is not included. Buyers should confirm the correct flexplate and converter bolt pattern before installation.
Is this transmission lockup compatible?
No. This transmission is listed as not lockup compatible.
What safety certifications does this transmission have?
This transmission is listed with SFI 4.1 / 30.1 rating. It also features a Dedenbear case with safety liner, built-in transmission shield, and built-in flexplate shield.
Does this transmission include fluid or a dipstick?
No. Transmission fluid is not included, and the dipstick is not included. Buyers should confirm the correct fluid and dipstick setup before installation.
Who is this transmission best for?
This transmission is best for drag racers, bracket racers, heads-up racers, race teams, chassis builders, performance shops, and drivetrain specialists who need a 700HP-rated Powerglide transmission with a full manual valve body, trans-brake, and SFI-certified safety features.
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